Lastpass auto-fill

Lastpass works on opera nevertheless it is excruciating to have to manually click the login field and choose the password from lastpass. In other words it would be really great if you guys could make the autofill function of lastpass work. From lastpass faq(https://lastpass.com/support.php?cmd=showfaq&id=9672) the ball seems to be on your side. Or at least is there a script or something that could make it work?